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Scorching conditions and raging bushfires have swept through the parched landscape of Western Australia. With temperatures forecast to continue climbing above 40C (104F) over the next few days, a severe heatwave warning has been issued across much of the south-west.

Broad Extreme Heat Alerts Across Multiple States

These conditions come after this month's bushfires in another state, which resulted in the loss of homes and loss of life. Severe heatwave warnings have also been activated for the coming days in areas within SA and NSW, as a system of high pressure shifts to the east, delivering intense heat to a broad swath of the region.

The mix of extremely dry vegetation and relentless high temperatures presents a volatile situation for emergency crews.

Global Weather Extremes Trigger Disruption

Elsewhere, a metropolis was plunged into blackout last week after strong gusts compromised the urban power grid, with toppled trees knocking out electricity cables. The weather conditions also led to significant transport delays at a key airport, where hundreds of air services were cancelled. Substantial damage to power systems is expected to cause ongoing issues as service providers scramble to reconnect electricity to over 1 million inhabitants.

Unusual Fog Covers Typically Clear Region

At the same time, a region famed for its sunny weather and plentiful sunlight has experienced one of its dullest and foggiest weeks on recorded history. A specific type of low cloud, which usually lasts for only a short time, has been unusually extensive and persistent this year, keeping temperatures at a major airport below 8C for over a week – the most prolonged period in more than three decades. The extended haze has been driven by exceptional fall precipitation that resulted in soils saturated.

• Key Factor: Record autumn rainfall soaked the ground.
• Outcome: Extended and dense fog formation.
• Effect: Thermal readings stayed unseasonably low for an lengthy time.

Severe Weather Delivers Snow to Tourist Destination

And in Spain, a weather system has ushered in heavy rainfall, strong winds and even snowfall to a set of islands – weather many would not associate with this favored holiday destination. While wintry precipitation is not unheard of at higher ground, the system brought some of the deepest accumulations since 2016 to a protected area, compelling its closure.

In addition to the snowfall, fierce winds from the north buffeted the island chain, with gusts exceeding 50mph observed on multiple locations. The influence of the storm is expected to diminish this week with more typical weather returning.